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Spatial competition among porifera: Solution by epizoism

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Summary

Sponges settling on solid substrates which are separated by sediment bottoms compete for the limited space. Some species have solved this problem by occurring as epizoans, thus avoiding the risk of being expelled from the habitat. The supporting species on the other hand, are specialized in that they possess skeletogenous ectosomal structures and aquiferous processes to maintain their integrity and to escape starvation or suffocation. Although specimens are sometimes intimately interwoven no chimaerid mixing of tissues was observed.

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This work was supported in part by Smithsonian Research Foundation Grant Sg 068104. I thank Dr. H. Forstner (Innsbruck) for his assistance in the field. Miss M. Dwyer prepared the drawings.

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Rützler, K. Spatial competition among porifera: Solution by epizoism. Oecologia 5, 85–95 (1970). https://doi.org/10.1007/BF00347624

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  • DOI: https://doi.org/10.1007/BF00347624

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